[GeckoConsole] [JavaScript Error: "undefined"] Failed to load blazor Wasm on Webview

[muayyat]

WebView stuck at loading screen and showing the following error.

Emulator: API Level 24

Webapp Platform: Blazor WebAssembly

.Net Version: 7.0.2

Log: [GeckoConsole] [JavaScript Error: "1676455131772 Telemetry::CoveragePing ERROR no endpoint base set" {file: "resource://gre/modules/Log.jsm" line: 679}] [GeckoConsole] append@resource://gre/modules/Log.jsm:679:12 [GeckoConsole] log@resource://gre/modules/Log.jsm:360:16 [GeckoConsole] error@resource://gre/modules/Log.jsm:368:10 [GeckoConsole] startup@resource://gre/modules/CoveragePing.jsm:40:11 [GeckoConsole] setupTelemetry/this._delayedInitTask<@resource://gre/modules/TelemetryController.jsm:719:30

[Daddoon]

Are you trying to load an external Blazor web app on the web ?
I didn't tested GeckoView since a long time since i deprecated BlazorMobile (as Microsoft released a native library for Blaozr on Mobile).

I don't think the "real" error is shown here from the log you copy/pasted, but I the error should be written in the webpage error logs (you should be able to read them with some "legacy" tools, it should be mentionned in the doc).

Otherwise, It is possible that some "things" does not work well with the current version of GeckView and the state of WebAssembly / Blazor evolutions. I presume a part of the solution would be to update the GeckoView bindings for Xamarin with a more recent GeckoView library version (.aar if I remember).

I don't have the time for that for now unfortunately, and had more difficulties to generate the bindings on more recent versions.